{% for field in form %}
                     {{ field.errors }}
                     {{ field.label_tag }}
                     {{ field }}
{% endfor %}


class UserLoginForm(AuthenticationForm):
    username = forms.CharField(label='Имя пользователя', widget=forms.TextInput(attrs={'class': 'form-control'}))
    password = forms.CharField(label='Пароль', widget=forms.PasswordInput(attrs={'class': 'form-control'}))


class UserLoginView(View):
    def get(self, request):
        form = UserLoginForm()
        template = 'customuser/login.html'
        context = {'form': form}
        return render(request, template, context=context)

    def post(self, request):
        form = UserLoginForm(data=request.POST)
        template = 'customuser/login.html'
        if form.is_valid():
            user = form.get_user()
            login(request, user)
            return redirect('shop')
        else:
            context = {'form': form}
            return render(request, template, context=context)